On Fri, Jun 26, 2015 at 09:33:00AM +0100, Zhen Lei wrote: > Now we only use TT0 translation, disable TT1 translation will safer. > > Signed-off-by: Zhen Lei <[email protected]> > --- > drivers/iommu/arm-smmu-v3.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c > index 43120ad..6d6712e 100644 > --- a/drivers/iommu/arm-smmu-v3.c > +++ b/drivers/iommu/arm-smmu-v3.c > @@ -285,6 +285,7 @@ > #define ARM64_TCR_EPD1_MASK 0x1UL > > #define CTXDESC_CD_0_ENDI (1UL << 15) > +#define CTXDESC_CD_0_EPD1 (1UL << 30) > #define CTXDESC_CD_0_V (1UL << 31) > > #define CTXDESC_CD_0_TCR_IPS_SHIFT 32 > @@ -893,7 +894,7 @@ static void arm_smmu_write_ctx_desc(struct > arm_smmu_device *smmu, > #endif > CTXDESC_CD_0_R | CTXDESC_CD_0_A | CTXDESC_CD_0_ASET_PRIVATE | > CTXDESC_CD_0_AA64 | (u64)cfg->cd.asid << CTXDESC_CD_0_ASID_SHIFT | > - CTXDESC_CD_0_V; > + CTXDESC_CD_0_EPD1 | CTXDESC_CD_0_V;
This is redundant. EPD1 is already set by the io-pgtable code. Will _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
